# Door/Window Sensor Sonoff DW2-Wi-Fi

**URL:** https://aio.lv/en/product--sonoff-dw2-wifi--10091173
**Data updated:** 2026-01-13 21:32 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Sonoff
**Manufacturer code:** DW2-WIFI
**EAN:** 6920075775891
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonoff-dw2-wifi--10091173

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The Sonoff DW2-Wi-Fi door/window sensor offers wireless connectivity via Wi-Fi, ensuring seamless integration into your smart home. Powered by AAA batteries with a 3V input voltage, it features a compact design with dimensions of 3.1 cm width, 1.9 cm depth, and 7 cm height. This sensor enhances security by notifying you of any unauthorized openings, making it an essential addition to your home automation system.

## Long description

The Sonoff DW2-Wi-Fi door/window sensor is a compact wireless detector designed to monitor the open or closed state of doors and windows. It connects to a home Wi‑Fi network to send real‑time notifications to a paired smart home app when a contact is broken or restored. Powered by AAA batteries with a 3V input voltage and a narrow form factor, the sensor fits discreetly on frames and sashes to provide continuous monitoring without a direct power connection.
Advantages
The device offers straightforward Wi‑Fi connectivity for easy integration into existing smart home systems and delivers instant push notifications when a door or window is opened or closed. Its small physical dimensions allow for unobtrusive installation on most frames, while battery power removes the need for wiring. The sensor’s simple contact-based operation ensures reliable detection of status changes and low maintenance due to the common AAA battery format.
Suitable for
 Monitoring exterior doors and windows for unauthorized openings
 Integrating with smart home automation routines (lighting, alarms, scenes)
 Securing interior doors, cabinets or storage areas
 Remote status checks of access points while away from home
Key specifications
 Wireless interface: Wi‑Fi
 Power source: AAA batteries, 3 V input voltage
 Dimensions: width 3.1 cm, depth 1.9 cm, height 7 cm
 Contact detection: magnetic contact sensor for open/closed state
How to use
Install the sensor by placing the main unit and the magnet so they align when the door or window is closed, following the distance guidelines in the included manual. Insert AAA batteries observing correct polarity, connect the sensor to your home Wi‑Fi network using the manufacturer’s app, and complete any required pairing or setup steps in the app to enable notifications and automation rules. Test the sensor after installation to confirm that open and close events register correctly in the app.
Usage recommendations
Place the sensor on clean, dry surfaces and avoid installing it where heavy condensation or direct water exposure can occur. Replace batteries when the app indicates low battery or at regular intervals based on usage patterns. Keep the Wi‑Fi signal strength adequate at the sensor location to ensure reliable event reporting.

## Specifications

| Feature | Value |
|---|---|
| Interface | Wi-Fi |
| Weight | 0.028 kg |
| Certification | FCC |
| Security algorithms | WPA, WPA2, WEP, 128-bit AES, AES, TKIP |
| Operating relative humidity (H-H) | 5 - 95 |
| Battery type | AAA |
| Operating temperature (T-T) | 10 - 40 |
| Number of batteries supported | 2 |
| Power supply input voltage | 3 |
| Width | 31 mm |
| Depth | 19 mm |
| Connectivity technology | Wireless |
| Product colour | White |
| Operating frequency | 2400 |
| Transmitter depth | 19 mm |
| Transmitter height | 70 mm |
| Transmitter width | 31 mm |
| Battery voltage | 1.5 V |
| Housing material | Polycarbonate (PC) |
| Mobile operating systems supported | Android, iOS |
| Suitable for | Door/Window |
| Installation type | Adhesive tape |
| Ambient temperature (max) | 40 °C |
| Ambient temperature (min) | -10 °C |
| Suitable for indoor use | Yes |
| Sustainability compliance | Yes |
| Sustainability certificates | CE, RoHS |

## FAQ

### How much does the Door/Window Sensor DW2-Wi-Fi cost, and is it available for purchase?

The price is 8.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Sonoff products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Sonoff service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Door/Window Sensor DW2-Wi-Fi?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10091173/54675636_large.webp